Road counting - History - Traffic data from permanent sensors

Historical road traffic data from permanent sensors from 2010 until year A-1. This dataset corresponds to the history of that of the current year Road counting - Traffic data from permanent sensors On the Parisian network, traffic measurement is mainly carried out through electromagnetic loops installed in the road. The data is produced by the Roads and Travel Department - Travel Service - Poste Central d'Exploitation Lutèce. The data and associated visualizations (Table, Map and Dataviz) are raw without any interpretation or analysis. They show the data as it is published daily. They give an overview of the occupancy rate and throughput on more than 3,000 track sections. On their own, they do not allow us to characterize the complexity of traffic in Paris. Two types of data are thus produced: occupancy rate, which corresponds to the presence time of vehicles on the loop as a percentage of a fixed time interval (one hour for the data provided). Thus, 25% occupancy rate over one hour means that vehicles were present on the loop for 15 minutes. The rate provides information on road congestion. The implementation of the loops is designed in such a way as to be able to deduce, from a point measurement, the state of traffic on an arc. flow is the number of vehicles that passed the counting point during a fixed time interval (one hour for the data provided). The time stamp is carried out at the end of the production period on the basis of the Europe Paris - Berlin UTC +1 time zone For example, the timestamp “2019-01-01 01:00:00” designates the period from January 1, 2019 at 00:00 to January 1, 2019 at 01:00. Thus, the coupled observation at one point of the occupancy rate and the flow makes it possible to characterize the traffic. This constitutes one of the foundations of traffic engineering, and is also called the “fundamental diagram”. A flow can correspond to two traffic situations: fluid or saturated, hence the need for the occupancy rate. For example: over an hour, a flow of 100 vehicles per hour on a route that is usually very busy can be encountered at night (fluent traffic) or during rush hour (saturated traffic). Parisian network equipment: The main axes of the City of Paris are equipped with stations for counting vehicles and measuring the occupancy rate, for the purposes of both regulating traffic and public transport, information to users (distribution on the Sytadin website), and study. There are two types of stations on the network: stations measuring the occupancy rate alone, and stations measuring both the rate and vehicle counting. The rate measuring stations are installed very regularly: they allow detailed knowledge of traffic conditions. Flow stations are fewer in number, and generally located between major intersections. Indeed, the flow is generally maintained on a section between two large intersections. The repository: The repository is available on this dataset Road counting - Geographic reference with the following characteristics: Encoding: UTF-8 Projection: EPSG:2154 (Lambert 93 – RGF93) The attribute fields are: see the data model below and the attached notice. Traffic data: The attribute fields are: see the data model below and the attached notice. To access the data download the attachments associated with this dataset below